You are going to get the least sensation / pleasure from one like @sm05 posted ... because it is hollow and belted to you (won't slide / pull / move very much on your actual penis) ... the ones the roll over your cock (think mega think condom) will give you a bit of movement inside the sleeve and the stimulation of fucking (the pulling pushing) so while you won't feel her there could be enough stimulation in the sleeve rubbing / moving on your cock that the sleeve could make you cum.

I agree. Go to the drug store and get some numbing stuff. Oragel or some other stuff with *cain or caine as the last part of the ingredient name. Use enough until you can't feel it. Be careful and let it fully fry and make sure to clean your hands.

There will be no way you'll get pleasure and you'll get the most intense mind fuck knowing no matter what you do you can't get any pleasure. One of my exs and I used to do this and it was intense.